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Have you read This Article, if I understand it correctly (very very unlikely) the dual GPU and V-Sync is the worst combination especially if it's able to sustain FPS above the monitors refresh rate, you can't have a low render ahead queue (0 or 1) in crossfire.Originally Posted by BradleyW 
Hello, thank you for the support so far.
If I set the fps to 58, it will run 2 below my refresh rate and this causes very slight stuttering because there is a mis-match between the amount of frames and the actual refresh rate.
Also, this is not general input lag, seen as there is no consistancy and the whole thing is strange anyway! Just read what I put about crysis. Very odd.....
Hello, thank you for the support so far.
If I set the fps to 58, it will run 2 below my refresh rate and this causes very slight stuttering because there is a mis-match between the amount of frames and the actual refresh rate.
Also, this is not general input lag, seen as there is no consistancy and the whole thing is strange anyway! Just read what I put about crysis. Very odd.....
Quote:
up to two frames of lag if we just turn on vsync, at framerates higher than the refresh rate we we'll add an additional frame of lag for every frame we render ahead with vsync on
If the render ahead is 3 (default for Direct X) that's between 3 and 5 frames of lag added randomly (depending on unknown/unmeasurable factors), if the game engine doesn't use defaults then it may not even be in the 3 to 5 range. Specifically which crossfire technique is used can also have an effect I guess or games wouldn't need different profiles.
I still have no idea why it would slowly increase though, but if pausing/resuming the game engine (that's what happens when you tab to the desktop?) gets rid of it that may be where your problem is.
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